Though Peterson mostly avoids a religious idea of sin (i.e., of human defiance of a God to whom they’re accountable), he draws a bit closer to it here as he dives into the concept of evil. Adam and Eve—and humanity as a whole—aren’t just susceptible to life’s hardships, but capable of
inflicting them, too. It would make more sense for humans, who’ve experienced suffering firsthand, to
not wish to inflict it—but, unlike animals that kill to survive, humans sometimes inflict suffering on each other gratuitously. For Peterson, this gratuitous wickedness is evil and evidence of what moderns might regard as the outdated Christian theological idea of Original Sin, or an inborn human capacity to do wrong.